The turtle shell isnt like any other protective element of any living animal its not an exoskeleton like some invertebrates have nor is it made of . How the turtle got its shell justine fontes ron fontes keiko motoyama on amazoncom free shipping on qualifying offers delightful retellings of turtle tales . The turtle has been in no rush to give up the secret of its shell but new research led by yales tyler lyson sheds light on a structure unique in the